19749938

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{2803}}^1$

素因数の和:3089

約数の個数: 16

約数和(自身を含む): 32032896

約数和(自身を除く): 12282958

約数列:

[1, 2, 13, 26, 271, 542, 2803, 3523, 5606, 7046, 36439, 72878, 759613, 1519226, 9874969, 19749938]

約数ペア:

[(1, 19749938), (2, 9874969), (13, 1519226), (26, 759613), (271, 72878), (542, 36439), (2803, 7046), (3523, 5606)]